#用python打印乘法口诀
#思路：第一行是1*1
#第二行是1*2 2*2
#第三行是1*3 2*3 3*3
#则规律为 i*j i>=j


a = ["1","2","3","4","5","6","7","8","9"];
for i in range (1,10):
    for j in range (1,10):
        if i>=j:
            print('%sx%s=%s'%(i,j,i*j),end='')

    print("")




